CN214099024U

CN214099024U - SMD digital screen

Info

Publication number: CN214099024U
Application number: CN202120236704.4U
Authority: CN
Inventors: 陶玉秀
Original assignee: Foshan Xindi Electronic Technology Co ltd
Current assignee: Foshan Xindi Electronic Technology Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-08-31
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses a patch type digital screen, which comprises a PCB, a display screen, a fixed shell and an epoxy seal plate; the fixed shell comprises a connecting rod, a fixed rod, a side sealing plate and a top plate, wherein the fixed rod, the connecting rod and the side sealing plate are connected below the top plate; the display screen is arranged above the top plate, and the PCB is fixed below the fixed shell through the connecting rod, the fixed rod and the side sealing plate; a sealing strip is arranged at the joint of the display screen and the top plate; the epoxy shrouding sets up in PCB below. The embodiment of the utility model provides a seal digital screen through sealing strip and epoxy shrouding, prevent that steam from getting into inside the digital screen, protect the digital screen circuit.

Description

SMD digital screen

Technical Field

The utility model relates to a digital screen field, concretely relates to SMD digital screen.

Background

The digital screen is a display screen made of one pixel by putting LEDs with two or more colors of red, yellow, blue and green together. The product is widely applied to the fields of electromagnetic ovens, electric pressure cookers, electric water heaters, electric fans, humidifiers, air conditioners, DVB set top boxes and the like and is used as a display surface.

In the prior art, gaps exist in the digital screen in the fixing process, and water vapor enters the digital screen through the gaps, so that the circuit of the PCB is possibly damaged, and the display error of the digital screen is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough of prior art, the utility model provides a SMD digital screen seals digital screen through sealing strip and epoxy shrouding, prevents that steam from getting into inside the digital screen.

In order to solve the technical problem, an embodiment of the present invention provides a chip-type digital screen, where the chip-type digital screen includes a PCB, a display screen, a fixing shell, and an epoxy sealing plate;

the fixed shell comprises a connecting rod, a fixed rod, a side sealing plate and a top plate, and the fixed rod, the connecting rod and the side sealing plate are connected with the lower part of the top plate;

the display screen is arranged above the top plate, and the PCB is fixed below the fixed shell through the connecting rod, the fixed rod and the side sealing plate;

a sealing strip is arranged at the joint of the display screen and the top plate;

the epoxy seal plate is arranged below the PCB.

The utility model discloses an optimal scheme, the epoxy shrouding is in PCB installs and fills through the epoxy embedding sealant behind the set casing and form.

The utility model discloses a preferred scheme, the side seal board includes short side seal board and long side seal board, short side seal board with long side seal board is connected.

In the preferred embodiment of the present invention, the PCB further comprises a concave contact piece, and the concave contact piece is disposed at the upper end of the PCB;

the female contact piece is arranged at the joint of the PCB and the male contact piece.

In the preferred embodiment of the present invention, the fixing shell further comprises a convex contact piece and a built-in wire, wherein the convex contact piece is arranged at the lower end of the side sealing plate and the lower end of the connecting rod;

the built-in wires are respectively connected with the convex contact pieces and the display screen.

In the preferred embodiment of the present invention, the display screen includes a light emitting diode and a reflective cavity;

the light reflecting cavity is arranged above the light emitting diode, and a sealing diaphragm is arranged at the upper end of the light reflecting cavity.

In the preferred embodiment of the present invention, the PCB comprises a digital pin, an electronic component and a driving circuit;

the drive circuit is respectively connected with the digital needle, the electronic element and the concave contact piece.

The utility model provides a SMD digital screen, seal the digital screen through sealing strip and epoxy shrouding, prevent that steam from getting into the digital screen inside, play waterproof function; the lead is arranged in the fixed shell in a built-in mode, the PCB and the display screen are connected through the fixed shell in a circuit mode, the lead is prevented from falling off due to collision, and cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a patch-type digital screen provided by an embodiment of the present invention.

Fig. 2 is a schematic diagram of a digital screen structure of a patch-type digital screen provided by an embodiment of the present invention.

Fig. 3 is a schematic view of a fixed casing structure of a patch-type digital screen provided by the embodiment of the present invention.

Fig. 4 is a schematic diagram of a PCB structure of a patch-type digital screen provided by an embodiment of the present invention.

The labels in the figure are: 1-display screen, 11-reflective cavity, 12-light emitting diode, 13-sealing membrane, 14-sealing strip, 2-fixed shell, 21-connecting rod, 22-fixed rod, 23-short side sealing plate, 24-long side sealing plate, 25-convex contact piece, 26-top plate, built-in lead-27, 3-PCB, 31-digital needle, 32-electronic element, 33-concave contact piece and 4-epoxy sealing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Examples

Fig. 1 is the embodiment of the utility model provides a structural schematic diagram of SMD digital screen, fig. 2 is the utility model provides a digital screen structural schematic diagram of SMD digital screen, fig. 3 is the utility model provides a set casing 2 structural schematic diagram of SMD digital screen, fig. 4 is the utility model provides a PCB3 structural schematic diagram of SMD digital screen.

The embodiment provides a patch type digital screen, which comprises a PCB3, a display screen 1, a fixed shell 2 and an epoxy seal plate 4;

the fixed shell 2 comprises a connecting rod 21, a fixed rod 22, a side sealing plate and a top plate 26, wherein the fixed rod 22, the connecting rod 21 and the side sealing plate are connected below the top plate 26;

the display screen 1 is arranged above the top plate 26, and the PCB3 is fixed below the fixed shell 2 through the connecting rod 21, the fixing rod 22 and the side sealing plate;

a sealing strip 14 is arranged at the joint of the display screen 1 and the top plate 26;

the epoxy cover plate 4 is disposed below the PCB 3.

The display screen 1 is embedded on the surface of the top plate 26, and the joint of the display screen 1 and the top plate 26 is sealed by the sealing strip 14, so that water vapor is prevented from entering the display screen 1.

Note that the epoxy cover plate 4 is formed by pouring epoxy potting agent after the PCB3 is mounted on the stationary case 2. The epoxy seal plate 4 bonds the gap between the PCB3 and the fixed shell 2 through epoxy potting agent, so as to play a role in water and moisture prevention.

It should be noted that the side sealing plates include short side sealing plates 23 and long side sealing plates 24, and the short side sealing plates 23 are connected to the long side sealing plates 24. The shape of the fixed shell 2 is a concave shape, four side seal plates are connected to the lower part of the fixed shell 2, and the four side seal plates are two short side seal plates 23 and two long side seal plates 24 respectively. The long side cover plate 24 and the short side cover plate 23 form a height difference, which just completes the packaging of the PCB 3.

It should be noted that the PCB3 further includes a concave contact piece 33, and the concave contact piece 33 is disposed at the upper end of the PCB 3; the female contact tab 33 is disposed at the junction of the PCB3 and the male contact tab 25.

It should be noted that the fixed shell 2 further includes a convex contact piece 25 and a built-in lead 27, the convex contact piece 25 is disposed at the lower end of the short side sealing plate 23 and the lower end of the connecting rod 21; the built-in wires 27 connect the male contact pieces and the display screen, respectively. The convex contact piece 25 is electrically connected with the display screen 1.

It should be noted that the display screen 1 includes a light emitting diode 12 and a reflective cavity 11;

the light reflecting cavity 11 is arranged above the light emitting diode 12, and a sealing diaphragm 13 is arranged at the upper end of the light reflecting cavity 11. The light that the reflection chamber was emitted LED 12 reflects the luminance that increases light, and sealed diaphragm 13 is installed fill through the deoxidization embedding agent behind the upper end of reflection of light chamber 11, will the clearance between reflection of light chamber 11 and the sealed diaphragm 13 is sealed, prevents that steam from getting into reflection of light chamber 11 damages LED 12.

It should be noted that the PCB3 includes a digital pin 31, an electronic component 32, and a driving circuit. The drive circuit is connected to the digital pin 31, the electronic component 32 and the concave contact piece 33, respectively.

The digital needle 31 and the concave contact piece 33 are respectively and electrically connected with the PCB3, the digital needle 31 and the PCB3 are connected and arranged below the deoxygenation sealing plate, and the concave contact piece 33 is arranged above the PCB 3.

In the process of packaging the PCB3, the convex contact piece 25 and the concave contact piece 33 at the lower end of the short side closure plate 23 are in position correspondence, the PCB3 is placed into the fixing case 2 along the oblique edge of the lower end of the long closure plate 24 and the short side closure plate 23 prevent the PCB3 from moving up and down, and the fixing rod 22 prevents the PCB3 from moving left and right.

The utility model provides a chip digital screen, which is sealed by a sealing strip and an epoxy seal plate 4 to prevent water vapor from entering the digital screen; the lead is embedded in the fixed shell 2, and the PCB3 and the display screen 1 are connected through the fixed shell 2, so that the lead is prevented from falling off due to collision, and the cost is saved; the sealing edge and the fixing rod 22 limit the position of the PCB3, the concave contact piece 33 is ensured to be in contact with the convex contact piece 25, the connection between the electronic element 32 and the digital screen is connected, the digital screen controls display information according to the electronic element 32, and cost is saved.

The embodiment of the present invention provides a patch-type digital screen, which is described in detail above, and the principle and the implementation of the present invention are explained by using specific examples, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A chip type digital screen is characterized in that the chip type digital screen comprises a PCB, a display screen, a fixed shell and an epoxy seal plate;

the epoxy seal plate is arranged below the PCB.

2. The surface mount digital screen according to claim 1, wherein the epoxy sealing plate is formed by pouring an epoxy potting agent after the PCB is mounted in the stationary case.

3. The chip-type digital screen according to claim 1, wherein the side sealing plates comprise short side sealing plates and long side sealing plates, and the short side sealing plates are connected with the long side sealing plates.

4. The SMD digital screen according to claim 1, wherein said PCB further comprises a concave contact piece, said concave contact piece is arranged on the upper end of the PCB;

5. The patch-type digital screen according to claim 1, wherein the fixed casing further comprises a convex contact piece and a built-in lead, the convex contact piece is arranged at the lower end of the short side sealing plate and the lower end of the connecting rod;

6. The surface mount digital screen according to claim 1, wherein the display screen comprises light emitting diodes and a reflective cavity;

7. The SMD digital screen according to claim 1, wherein said PCB includes a digital pin, electronic components and a driving circuit;